I noticed a coolant leak coming out under my Mazda 3 2007. It is right in the center next to what looks like an overflow outlet.
I have noticed a hole which looks like this, and coolant comes from it.
What can the cause be?
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To diagnose this I would back up your car and touch and smell the liquid. Antifreeze is usually green and slimy and shines in sun light. Water from condensation is usually colder if it just leaked out and well its water haha. Fuel, smells like fuel and stains and concrete with a dark discoloration turning blackish in the sun and smells like gas/ diesel. when fresh, gas usually has a slight blue coloring to it and smells strong.